eschenbeck



(No Model.) 4 Sheets-Sheet 1.

M. ESGHENBBOK. MACHINE FOR MANUFACTURING BOXES 0R PLATES.

No. 527,146. Patented Oct. 9, 1894.

m: nonms mm on. vnu'roumou wnsmunlon, n. c.

(No Model.) 4 Sheets-Sheet 2. M. ESCHBNBBGK.

MACHINE. FOR MANUFACTURING BOXES 0R PLATES. No. 527,146. Patented Oct.9, 1894.

' 4 Sheets-Sheet 3. M. BSCHBNBECK. MAGHINB FOR MANUFACTURING BOXES 0RPLATES- (No Model.)

Patented Oct. 9, 18 94 (No Model.) 4 Sheets-Sheet 4.

M. ESOHBNBEGK. MACHINE POR'MANUPAOTURING BOXES 0R PLATES. No. 527,146.Patented Oct. 9, 1894.

Z i gm I x. 502 69222 5 m a: mama vmas on mgcrraprma. wAsmNcmN. D. c.

UNITED STATES MAX ESCHE/NBEOK'OF JERsEYoITY, NEW JERSEY, ASSIGNOR TOULIUS PATENT OFFICE.

MOHS, OF DRESDEN, GERMANY.

MACHINE FOR MANUFACTURING BOXES OR PLATES.

SPEClIFIGATION forming part of Letters Patent No. 527,146, dated October9, 1894.

Application filed September 22,1393. seen No. 4%,248. (No model.) Patani Germany August 9 70.794

' and 71,017.

invention may be applied to machines for manufacturing tinware or otherarticles produced by presses.

My invention consists in a particular formof steaming device, by meansof which the box-blanks may be steamed before pressing,

- in order to soften'the blanks and render them more plastic than usual.

My-invention consists further'in a special mechanism for bending theends of the longitudinal side-pieces of cornered boxes, prior to thebending of the cross-side pieces.

My invention also consists of such features, details and combinations ofparts, as will first be described in connection with the accompanyingdrawings, and then particularly pointed out in the claims.

.In the-drawingsFigure 1 is a plan view, partly in section, of a'duplexbox machine embodying my invention. Fig. 2 is a longitudinal section,partly in elevation, of the same. Fig. 3 is a detail view of part ofanother form of machine embodying my invention. Fig. 4 is a detail viewof the end-folding device employed in connection with the modificationshown in Fig. 8. Figs. 5 to 12 with an outer shell, c into which entersacentral core, 6 which is attached to its conare detail views,illustrating several forms of carrier-plates of my invention. Fig. 13 isa detail view of a stripper device of my invention. Fig. 14 is adiagrammatic view which will be referred to hereinafter. Fig. 15 is aplan View of abox-blauk.) Fig. 16 is a detail transverse section of theplunger, showing the key, 6 in elevation.

Referring particularly to Figs. 1and2, of

the drawings, A a bed plate, provided with.

the pillow-blocks, B, bolted to the bed-plate and having two sets ofjournal-boxes, in which are mounted the shafts, 0' and n, the outer endsof the shaft, 91, being further supported by outboard bearings, C, onlyone of which is shown in Fig. 1.

Upon the shaft, 72, near one end, is mounted wheel, n loosely mounted onthe shaft, n, and. arranged to be locked to the said shaft by a clutch,a which is shifted into and out of operation,.by a. clutch lever, n

It is obvious that when the gearwheel, n

is locked to the shaft, 01, the latter will be ro- I tated. The centralportion of the shaft, n, is

provided with two cranks, r and 7'', while, at

each end of said shaft, are fixed the cams, h,

h, having peripheral cam-slots, into each of which enters a pin,f, onthe end of a shift ing lever, f, these levers being fulcrumed at g Theselovers will be again referred to hereinafter.

To the base-plate are fixed slide-ways, A, in which move the plungers,E, which are pivoted to the ends of the connecting rods, 8', 8, theseconnecting rods being pivotally attached to crank rods, p, p, and toguide arms, 0 the latter being loosely mounted on the shaft, 0', whilethe crank rods engage the central portions, q, q, of the cranks, 'r, r,previously described.

, Each plunger, E, is preferably constructed necti'ng rod, 8 or s. Thelower end of the outer shell has a central axial opening in] which isheld a shank, c of the male die, one end of the die-shank'having a'head, a against which bears a helical spring, a loosely I mounted in theshell. Within the spring projects a guide-rod, e which is threaded I00into a central axial hole in the central core, being provided with acollar, 6 against which the spring, a bears, the said collar havingspanner holes, by means of which the guiderod may be adjusted so as topermit its free end to contact with the head, a on the shank of the maledie'. To permit access to this collar for the purpose of suchadjustment, a portion of the shell is cut away, as shown. A forked key,e (shown in Fig. 16,) is let into-a sultable recess in the shell, and isarranged to straddle the guide-rod, a, between the collar and the end ofthe central core, the said guide-rod being free to move longitudinallywithin the fork of said key until the collar contacts with the key,whereupon a further movement of the core and guide-rodwill move theshell with them.

To the base-plate is secured a frame, F, which carries the female dies,which are interchangeable, and may be of various forms, to suit theshape of box or other article which it is desired to make. In Fig. 1, Ihave shown two forms of female dies with their corresponding male dies.

The dies shown at the lower side of the sheet are intended for usein'manufacturing saucer-shaped boxes, while the pair illustrated at theupper side of the drawings are for the manufacture of cylindrical boxes.

The first-mentioned dies for making saucershaped boxes comprise a maledie, 00, having a rounded lower end with a projecting portion, as, thismale die being attached to the lower end of the plunger, 6 by a pin,This male die enters a correspondingly-shaped female die, 00 which isprovided with flanges, 00 adapted to be engaged and held by flanges, mintegral with the frame, F. The lower end of the female die is providedwith an opening arranged to receive a lower plunger, 50 which has ahead, m resting in a recess within the female die, and is pressed towardthe male die by a spring, 00 which is attached to a screw, m threadedthrough the bottom of the frame, F.

The dies shown in the upper side of Fig. l and also in Fig. 4, comprisean ordinary cylindrical male die, y, secured to the plunger, e in anysuitable way and arranged to enter a female die, y, held within areceptacle, 21 which has flanges, 1 at its upper end ar ranged to beengaged and held by flanges, :0 formed integral with the frame, F, thesaid receptacle also having flanges, g, which prevent the downwardmovement of the female die. The lower end of the receptacle is providedwith an opening through which passes a lower plunger, 3 having acylindrical head or portion, y, movable within the female die, saidlower plunger being guided in an opening in a yoke or bottom piece, yfixed to the receptacle in any suitable way. The lower end of the lowerplunger is held, by a dowel joint, 1 to a screw :10", by means of whichthe height of the piston, y, within the female die,

may be adjusted so that the same female die may be used with male diesof varying depths. The spring, as, may be adjusted in tension by itsscrew, 1;", and serves to force out the completed box from its femaledie, as will be fully understood by those skilled in the art. The frame,F, also carries, ateach side, a magazine, 0., having apiston or plunger,(1 which is pressed forward,-preferably by weights.

Over the female-dies move carrier-plates, 0 attached by links, g to theshifting levers, f. Each carrier-plate is provided with a series ofperforations at one end, and with a recess at the other end, into whichis fitted a blank-carrier, a these blank-carriers having centralopenings the size of the maledie, and blank-receiving recesses next tothe frame, F. Each carrier-plate is arranged to be moved back and forthby its lever, f, in such a manner that its blank-carrier willalternately come opposite the mouth of the magazine and female die, itbeing understood that when in the latter position the perforations inthe carrier-plate will then be opposite the mouth of the magazine. Inline with the magazine are fixed caps, 0 provided with steam-inletpipes, 0 by means of which steam is conveyed to the interior of the cap,0 and into the mouth of the magazine, when the perforations comeopposite the mouth of the magazine, the pipe, 0 being flexibly connectedwith any source of steam supply.

The magazine is arranged to receive the box-blanks, and feeds them tothe blank-receiving recess in the blank-carrier, when the latter comesopposite the magazine,the blanks being forced from the magazine by thepiston, the outermost blank being steamed be fore passing to the dies,by means of the steam coming through the inlet-pipe, 0 cap, c ,and theperforations in the feed-slides, or carrier-plates.

When the blank comes opposite the dies, the male die descends throughthe central opening in the blank-carrier and forces the blank into thefemale die, where it is pressed into shape. It will be seen that whenthe shaft, n, makes one revolution, its cranks, r, 'r', and crank-arms,19,19, will swing the guide-arms, 0 across the lines joining the shaft,0', and the plunger axes, and will draw said guide arm back again acrosssaid lines. In other words, each connecting rod and its respective guidearms will be in the same longitudinal plane twice during each revolutionof the shaft, n, and at such times, the male die is at the extreme limitof its move-' ment toward the female die. In this way, the box-blank ywill be pressed twice and will then be withdrawn by the male die as thelatter moves away from the female die.

In all those box-machines previously constructed,of which I have anyknowledge; the male die is raised from the female die in the intervalbetween the first and second pressing of the box-blank and therefore thelatter is liable to be displaced by the movement of the male die afterthe first pressing, so that IIO ' female die by the spring, a actingagainst the head of the die-shank, as will be apparent from thedrawings.

In the modification shown in Fig. 3, which represents a machine arrangedto manufacture boxes having corners, the magazine consists of a seriesof rods, 7L attached to the framework of the machine,and adapted toreceive the box-blanks, the piston being in this case what is oftentermed a follower. In this construction, a blank of somewhat differentform is used, such a blank being shown in Fig. 15, and consisting oflongitudinal sidepieces, 1, having ends, 2, arranged to be benttransversely, after which the cross side-pieces,

3, are bent up against the ends, 2, and secured by suitable adhesivematerial. When first the male die forces the box-blank against the female die, the longitudinal side pieces are bent into their properposition, and it then becomes necessary to bend the ends of the saidlongi tudinal side-pieces at 'right angles. For the purpose of doingthis,I provide my machine with arms or fingers, g, pivotally attached tothe female die and resting in recesses therein. Assoon as the male diehas bent the longitudinal sides into shape, the continued descent of theplunger causes the fingers to engage the ends of the longitudinal sidesand force them toward each other, after which the further descent of theplunger releases the fingers, and the cross-side pieces are then bentinto position.

' The mechanism employed for the purpose of performing the operation ofbending the ends of the longitudinal slides may be variously modified,but the tion is shown in Fig. 4:.

In Figs. 3 and 4, e, is a male die which is provided with a plate, 6.The female die, d, is slotted, as at b, to receive the fingers, g, whichare pivoted in the said slots and provided with studs, 9 arranged in thepath of the plates, 6', the latter being beveled on their outer cornersto engage the said studs, 9 thereby swinging the fingers inward andcausing them to fold the ends of the longitudinal sides inward, afterwhich, by the continued descent of the plunger, the partly folded blankis forced farther into the female die the ends of the longitudinal sidesbeing carried past the ends of the fingers, g, and the cross-side piecesfolded against the said end pieces. As the plunger moves away from thefemale die, it draws the box with it, and, when the latter is. entirelyfreed from the female die, it is stripped from the male die by suitablestrippers.

The stripper device, as seen in Fig. 13, consists of an open plate, '0,attached to'the frame *blanks.

preferred construc- J as the plunger, e, and provided with steam work ofthe machine, being provided with a series of radially adjustable arms,1), which are secured to the plate by any suitable The inner ends of thearms are pretmeans. erably concave, and maybe moved 1nto contact withthe male die, in which posltlon they are secured by tightening theirrespective screws. It will be seen that by'this arrangement, thestripping device may beemployed either for round orcornered boxes.

i In the construction shown in Fig. 3, I employa'feed slide similar tothe one illustrated in Figs. 7 and 8, in which the blank is held inplace by cross strips, (1 and stop plates,

d, which prevent-the magazine plunger from forcing the blanks entirelythrough the opening in the blank-carrier; The cross strips and stopplates are each provided with slots, d, through which screws or bolts,c1 pass,

to securethe saidstrips and plates to the feed slide, thereby permittingan adjustment of the said strips and plates for varying sizes of Figs. 9and 10show rier-plate, d", which is circular and has'a series ofinterchangeable blank carriers, 0 let into it. In this construction, themagazine, a, is on the same side,of the carrier-plate as the male dieandplunger, the, steam-box being below the carrier-plate, as will be fullyunderstood from the drawings. Thecarrlerplate is'revolved. about itscenter, diby'any suitable means, such as, for instance, a belt appliedto a pulley on its central axis. The features not specially described,suchas the blank-carriers and the dies, together with the plunger andmeans for operating it, may be of a construction similar to thatdescribed and shown in Fig. 2.

In Figs. 11 and 12, I have shown an OSClllating carrier-plate, d whichis pivoted at LP, and provided with one blank carrier of theconstruction previously given,the steam-box being on the same side ofthe carrier-plate blank-carrierat its pivotal point, (F, and op-.

erated by a connecting rod driven in any suitable manner.

Fig. 14 is a diagrammatic view, illustrating the manner in which twomachines of myconstruction may be coupled so as to operate from oneshaft. In this figure, e, e, are the reciprocating p1ungers,s areconnecting rods, 0 0 are the two arms of a lever pivoted at 0, while 10is a pitman connected to the crank, r, fixed on the shaft, n. Thereference letters applied to these various parts are the same as thoseused on the similar parts in the form of machine shown in Figs. 1 and 2.

It will be observed that by my construction,

one modification of car-.

IIO

the blank-carriers, 0 may be removed from the carrier-plates, 0 andhence blank carriers of various interior dimensions may be used on thesame machine for the manufacture of various sizes of boxes.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. Ina box-making machine, the combination, with a magazine, and a pairof dies, of a carrier-plate, a blank-carrier mounted on thecarrier-plate, and having a blank-receiving recess and means for movingthe carrier-plate whereby the blankcarrier is alternately broughtopposite the magazine and between the dies, substantially as set forth.

2. In a box-making machine, the combination, with a magazine, and a pairof dies, of a carrier-plate, a blank-carrier mounted on thecarrier-plate, a steaming device attached to the carrier-plate, andmeans for moving the carrier-plate, whereby the blankcarrier is broughtalternately over the magazine or between the dies, and the steamingdevice is alternately brought over the magazine and then removed,substantially as set forth.

3. In a box-making machine, the combination, with a magazine, and a pairof dies, of a carrier-plate provided with an opening, and a series ofinterchangeable blank-carriers insertible in the said opening,substantially as set forth.

4. In a box-making machine, the combinanation, with a slotted femaledie, and a pair of fingers pivoted in the slots and provided with studsat their outer ends, of a plunger, and a plate attached to the plungerand provided with beveled outer corners arranged to engage the studs onthe fingers when the plunger descends, substantially as set forth.

5. In a box-making machine, the combination, with a slotted female die,and a pair of fingers pivoted in the slots and provided with studsattheir outer ends, of a plunger, a plate attached to the plunger andprovided with beveled outer corners arranged to engage the studs on thefingers when the plunger descends, and a spring connected to each fingerand arranged to return the latter to its normal v position,substantially as set forth.

6. In a box-making machine, the combination, with a plunger, a diecarried by the plunger, and means for giving the plunger tworeciprocations, of a die-retaining device, intermediate the die andplunger whereby the die is held in contact with the blank during thesecond reciprocation of the plunger, substantially as set forth. I

7. In a box-making machine, the combination, with a plunger, ofmechanism for giving the plunger first a long reciprocation and then ashort reciprocation, a die carried by the plunger, and means for holdingthe die stationary during the short reciprocation of the plunger,substantially as set forth.

8. In a box-making machine, the combination, with a central plungercorehaving a threaded axial hole,of an outer shell surrounding the centralcore, a die projecting through the outer shell, a spindle screwed intothe axial'hole in the central core, and provided with a collar, and aspring between the die and the said collar, substantially as set forth.

9. In a box-making machine, the combination, with a shaft, asleeve looseon the shaft,

a pulley and a gear pinion fixed to the sleeve,

a gear wheel meshing into the gear pinion, and a shaft on which the gearwheel is fixed,

of a gear pinion on the second shaft, a gear wheel loose on the firstshaft, means for locking the latter gear wheel to the first shaft, acrank attached to the first shaft, a plunger,

a crank rod attached to the crank, a guide arm pivoted at one end, and aconnected rod attached to the plunger at one end and to the crank rodand guide arm at the other end, substantially as set forth.

10. In a box-making machine, a stripper-device comprising an annularplate, enemies of slotted fingers and a series of screws passing throughthe slots in the fingers and threaded into the annular plate,substantially as set forth.

11. In a box-making machine, the combina- 5 tion, with a carrier-plate,and a pair of slotted cross-strips, and a pair of slotted stopplates, ofa series of screws passing through the slots in the cross -strips andstop plates and threaded into the carrier plate, substan- I03 tially asset forth. r

12. In a box-making machine, a stripper device comprising an open platein combination with a series of fingers adjustably attached to the openplate, substantially as described.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

MAX ESCHENBECK.

Witnesses:

E. K. STUBTEVANT, H. VAN OLDENWEEL.

